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LTC3862EFE#PBF

更新时间： 2024-01-31 12:06:38
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管多相元件
页数 文件大小 规格书
42页 1014K
描述
LTC3862 - Multi-Phase Current Mode Step-Up DC/DC Controller; Package: TSSOP; Pins: 24; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3862EFE#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：TSSOP包装说明：HTSSOP, TSSOP24,.25
针数：24Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.4模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：36 V最小输入电压：4 V
标称输入电压：12 VJESD-30 代码：R-PDSO-G24
JESD-609代码：e3长度：7.8 mm
湿度敏感等级：1功能数量：1
端子数量：24最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.02 A
标称输出电压：3.8 V封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装等效代码：TSSOP24,.25
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.2 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PHASE-SHIFT
最大切换频率：500 kHz技术：CMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：4.4 mmBase Number Matches：1

LTC3862EFE#PBF 数据手册

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LTC3862  
Multi-Phase Current Mode  
Step-Up DC/DC Controller  
FeaTures  
DescripTion  
The LTC®3862 is a two phase constant frequency, current  
mode boost and SEPIC controller that drives N-channel  
power MOSFETs. Two phase operation reduces system  
filtering capacitance and inductance requirements.  
n
Wide V Range: 4V to 36V Operation  
IN  
n
2-Phase Operation Reduces Input and Output  
Capacitance  
n
Fixed Frequency, Peak Current Mode Control  
n
5V Gate Drive for Logic-Level MOSFETs  
Theoperatingfrequencycanbesetwithanexternalresistor  
over a 75kHz to 500kHz range and can be synchronized  
to an external clock using the internal PLL. Multi-phase  
operation is possible using the SYNC input, the CLKOUT  
output and the PHASEMODE control pin allowing 2-, 3-,  
4-, 6- or 12-phase operation.  
n
Adjustable Slope Compensation Gain  
n
Adjustable Max Duty Cycle (Up to 96%)  
n
Adjustable Leading Edge Blanking  
n
1ꢀ Internal Voltage Reference  
n
Programmable Operating Frequency with One  
External Resistor (75kHz to 500kHz)  
n
Otherfeaturesincludeaninternal5VLDOwithundervoltage  
lockout protection for the gate drivers, a precision RUN  
pin threshold with programmable hysteresis, soft-start  
and programmable leading edge blanking and maximum  
duty cycle.  
Phase-Lockable Fixed Frequency 50kHz to 650kHz  
n
SYNC Input and CLKOUT for 2-, 3-, 4-, 6- or  
12-Phase Operation (PHASEMODE Programmable)  
n
Internal 5V LDO Regulator  
24-Lead Narrow SSOP Package  
n
n
5mm × 5mm QFN with 0.65mm Lead Pitch and  
24-Lead Thermally Enhanced TSSOP Packages  
PART NUMBER  
LTC3862  
INTV  
V
IN  
ON  
V OFF  
IN  
CC  
5V  
3.3V  
7.5V  
4.4V  
2.9V  
7.0V  
3.9V  
LTC3862-1  
LTC3862-2  
10V  
10V  
applicaTions  
n
Automotive, Telecom and Industrial Power Supplies  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
Protected by U.S. Patents, including 6144194, 6498466, 6611131.  
Typical applicaTion  
V
IN  
5V TO 36V  
22µF  
50V  
84.5k  
19.4µH 19.4µH  
V
OUT  
48V  
Efficiency vs Output Current  
V
24.9k  
IN  
5A (MAX)  
RUN  
INTV  
GATE1  
+
98  
96  
94  
92  
90  
88  
86  
84  
82  
80  
V
= 48V  
OUT  
SENSE1  
CC  
V
= 12V  
220µF  
50V  
IN  
4.7µF  
10nF  
0.006Ω  
LTC3862  
–
BLANK  
FREQ  
SENSE1  
66.5k  
10k  
GATE2  
SYNC  
+
SENSE2  
V
= 24V  
IN  
PLLFLTR  
10nF  
0.006Ω  
V
= 5V  
IN  
SS  
–
SENSE2  
1nF  
3V8  
PGND  
CLKOUT  
SLOPE  
FB  
10nF  
68.1k  
D
MAX  
ITH  
PHASEMODE  
SGND  
100  
1000  
LOAD CURRENT (mA)  
10000  
475k  
12.4k  
100pF  
3862 TA01b  
3862 TA01  
3862fc  
For more information www.linear.com/LTC3862  
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